Ion exchange voltammetry at branched polyethylenimine cross-linked with ethylene glycol diglycidyl ether and sensitive determination of ascorbic acid

- An electrochemical sensing platform based on new anion exchange polymer is constructed.
- Ion exchange voltammetry and electrocatalysis are used for ascorbic acid (AA) determination.
- Kinetic parameters of electrocatalytic oxidation of AA are evaluated.
- Low detection limit with moderate sensitivity is achieved for AA determination.